We have strong economic relationships with the rest of the UK. With our EU partners. And with large and small nations across the world. And I would contend that the basis of that framework is not Scotland's relationship with the other nations of the UK - strong and enduring though that will be. Rather, the reality is that our fundamental economic role is as a member of the world's largest single market - the European Union. And it is this relationship which does most to shape the rules and the terms of our global commercial ties. Nonetheless it remains for many an article of faith that a positive future for Scotland's economy depends squarely on our continuing membership of the United Kingdom. ... I for one was not convinced!